cÁn Idea of a 
32. $. From whence, I halbes print, only make thefe two Re- 
y Firft, That although the chief portion, as to quantity, in 
pee Bebe Gs in molt Plants) is an Acid Liquor 3 yet the lat- 
ter, yields alfo fome of an Alkaly, which the other doth not, So that 
they arethe Liguons Parts ofa Plant, generally, which yield the Alkalick 
Salt, or at leaft in the greateft Proportion. secondly, That the Sul- 
phurioms or Oleows Principle, isalfomuch more predominant in the Lig- 
nous Part, thanin the Pithy. To thefe, the like Tryals upon other 
Plants, Should beadded 5 and other ways. So, in regard the Soot of 
moft Woods, yields a Volatile Alkaly; it were fit to examine, Whe- 
ther the Soot which ismade of the Pithy Parts and that, of the Lig- 
noms, afford the faid Alkaly, in equal qantity ; or whether, as is molt 
likely, that of the Ligvous doth afford it in a far greater: and the 
like. d L a 
53. $. The profecution of what is here propofed, will be requifite, 
To a fuller andclearer view, of the Modes of Vegetation, of the Senfi- 
ble Natures of Vegetables, and of their more Reclufe Faculties and Pow- 
ers. Firft, of the Modes of Vegetation. For fuppofe we were fpeak- 
ing of a Root 5 from a dueconfideration of the Properties of any Or- 
ganical Part or Parts thereof ‘tis true, that the real and genuine Caw- 
fès may berendred, of divers other dependent Properties, as fpoken ge- 
nerally of the whole Root. Butit will be asked again, What may be 
the Caufes of thofe firf? and Independent ones? Which, if we will 
feek, we muft do it by inquiring alfo, What arethe Principles of thofe 
Organical Parts è? For it is neceflary, thatthe Principles whereof a Bo- 
dy doth confift, fhould be, ifnot.all of them the aive, yet the capa- 
citating Canfes, or fach as are called Canje: fine quibus non, of its become 
ing. and being, in all refpetts, both as to Subflance and Accidents, what 
itis: otherwife, their Exiftence, in that Body, were altogether fü- 
perfluous 3 fince it might have been without them: which if fo, ie 
might then have been made of any other; there being no neceflity of 
putting any difference , ifneither thofe,whereof it is made,are thought 
neceffary to its Being. Wherefore if we will allow a Body, and fo the Or- 
ganical Parts of a Vegetable tohave Principles, we multallow thefe Prin- 
ciples their neceflary Ufe; and that the Shapes or other Propertiesof the 
faid Parts, are as much dependant upon the Nature of Thefe 5 as is the 
Roundnefs of a Drop of Ink, upon the Fluidity of Water, ingredient 
to it. 
54. $. Again, the Principles of the Organical Parts being known, 
we may from thenceobtain a further knowledge of the Natures, and 
Caufation or Original oftheir Contents 5 fince thefe Contents are not on- 
ly included in the faid Organical Parts, but alfo Created by them :and 
muft needs be fo, whether we will fuppofe the Principles of thefe Con- 
tents to be pre-exiltent to their reception thercinto, or not. For, if 
Not pre-exiftent, what can be clearer, than that the faid Parts give 
them their Exiftence? And if pre-exiftent, yet in regard they are di- 
ftinguifhed, and fuch only of them admitted in fuch fort into an Orga- 
nical Part, from amongft others, as are apt to combine and; mix toge- 
ther in fuch a Form,and fo to conftitute fuch a Liquor; it 1s as clear,that 
the Exiftence, if not ofthofe Principles, yet of that Liquor, is depen- 
dent on the faid Part. 
555 
REESE 2e BB er... u. 
